noise

In this paper, firstly the noise level in laser warning is analyzed, then the signal to noise ratio and detection probability are researched, and at last the distance equation and dynamic range are also researched.

分析激光告警中的噪声电平 ,研究信噪比与探测概率 ,最后研究距离方程与动态范

Noise estimation is the key factor of speech enhancement in variable noise-level environments.

噪声估计是变噪声电平环境下语音增强的关键。

In this range finder,an automatic noise threshold control circuit is used to automatically control average noise pulse firing rate.

测距仪采用自动噪声电平控制电路动态控制噪声脉冲的平均发生率 ,使系统获得稳定的平均噪声脉冲发生率 ;信号、噪声自动识别技术将淹没在噪声中的信号提取出来。